EP1466968A3 - Method and apparatus for encapsulation of biologically-active substances - Google Patents

Method and apparatus for encapsulation of biologically-active substances Download PDF

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Publication number
EP1466968A3
EP1466968A3 EP04014206A EP04014206A EP1466968A3 EP 1466968 A3 EP1466968 A3 EP 1466968A3 EP 04014206 A EP04014206 A EP 04014206A EP 04014206 A EP04014206 A EP 04014206A EP 1466968 A3 EP1466968 A3 EP 1466968A3
Authority
EP
European Patent Office
Prior art keywords
biologically
encapsulation
red blood
active substances
cells
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04014206A
Other languages
German (de)
French (fr)
Other versions
EP1466968A2 (en
Inventor
Yves Claude Nicolau
Ulrich Bruggemann
Yousef Mouneimne
Eric Conrad Roux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBR Laboratories Inc
Original Assignee
CBR Laboratories Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CBR Laboratories Inc filed Critical CBR Laboratories Inc
Publication of EP1466968A2 publication Critical patent/EP1466968A2/en
Publication of EP1466968A3 publication Critical patent/EP1466968A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00—Medicinal preparations containing peptides
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N13/00—Treatment of microorganisms or enzymes with electrical or wave energy, e.g. magnetism, sonic waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
    • A61K35/12—Materials from mammals; Compositions comprising non-specified tissues or cells; Compositions comprising non-embryonic stem cells; Genetically modified cells
    • A61K35/14—Blood; Artificial blood
    • A61K35/18—Erythrocytes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005—Wall or coating material
    • A61K9/5063—Compounds of unknown constitution, e.g. material from plants or animals
    • A61K9/5068—Cell membranes or bacterial membranes enclosing drugs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3692—Washing or rinsing blood or blood constituents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3693—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits using separation based on different densities of components, e.g. centrifuging
    • A61M1/3696—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits using separation based on different densities of components, e.g. centrifuging with means for adding or withdrawing liquid substances during the centrifugation, e.g. continuous centrifugation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P7/00—Drugs for disorders of the blood or the extracellular fluid
    • A61P7/06—Antianaemics
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M35/00—Means for application of stress for stimulating the growth of microorganisms or the generation of fermentation or metabolic products; Means for electroporation or cell fusion
    • C12M35/02—Electrical or electromagnetic means, e.g. for electroporation or for cell fusion
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
    • C12M47/04—Cell isolation or sorting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/04—Liquids
    • A61M2202/0413—Blood
    • A61M2202/0429—Red blood cells; Erythrocytes

Abstract

The present invention relates to a method and apparatus for the encapsulation of biologically-active substances in red blood cells, characterized by an optionally automated, continuous-flow self-contained electroporation system (10), as shown in the figure which allows withdrawal of blood from a patient (11), separation of red blood cells (44), encapsulation of a biologically-active substance in the cells (72), and optional recombination of blood plasma and the resulting modified red blood cells (96), thereby producing blood with modified biological characteristics. The present invention is particularly suited for use to encapsulate allosteric effectors of hemoglobin, thereby reducing the affinity of erythrocytes for oxygen and improving the release of oxygen from erythrocytes in tissues.
EP04014206A 1993-03-23 1994-03-23 Method and apparatus for encapsulation of biologically-active substances Withdrawn EP1466968A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US3546793A 1993-03-23 1993-03-23
US35467 1993-03-23
EP94911692A EP0690671B1 (en) 1993-03-23 1994-03-23 Method and apparatus for encapsulation of biologically-active substances in cells

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP94911692A Division EP0690671B1 (en) 1993-03-23 1994-03-23 Method and apparatus for encapsulation of biologically-active substances in cells
EP94911692.5 Division 1994-09-29

Publications (2)

Publication Number Publication Date
EP1466968A2 EP1466968A2 (en) 2004-10-13
EP1466968A3 true EP1466968A3 (en) 2006-10-04

Family

ID=21882856

Family Applications (2)

Application Number Title Priority Date Filing Date
EP94911692A Expired - Lifetime EP0690671B1 (en) 1993-03-23 1994-03-23 Method and apparatus for encapsulation of biologically-active substances in cells
EP04014206A Withdrawn EP1466968A3 (en) 1993-03-23 1994-03-23 Method and apparatus for encapsulation of biologically-active substances

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP94911692A Expired - Lifetime EP0690671B1 (en) 1993-03-23 1994-03-23 Method and apparatus for encapsulation of biologically-active substances in cells

Country Status (8)

Country Link
US (1) US5612207A (en)
EP (2) EP0690671B1 (en)
JP (1) JPH08511680A (en)
KR (1) KR960700740A (en)
AT (1) ATE272311T1 (en)
AU (1) AU680890B2 (en)
DE (1) DE69433933T2 (en)
WO (1) WO1994021117A1 (en)

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EP0690671A4 (en) 1999-04-21
JPH08511680A (en) 1996-12-10
ATE272311T1 (en) 2004-08-15
DE69433933T2 (en) 2005-07-21
WO1994021117A1 (en) 1994-09-29
EP0690671A1 (en) 1996-01-10
KR960700740A (en) 1996-02-24
EP1466968A2 (en) 2004-10-13
EP0690671B1 (en) 2004-08-04
AU6415094A (en) 1994-10-11
US5612207A (en) 1997-03-18
AU680890B2 (en) 1997-08-14
DE69433933D1 (en) 2004-09-09

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